IGEM:Peking/2007/Count:Transformation

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  1. Hold competent cells (from -80℃ refrigerator) on ice.
  2. Gently mix ligation product (10-15 μL) with cells, then bath in ice for 30 min.
  3. (Precisely!) Bath in 42℃ water for 90 sec.
  4. Hold again in ice for 2 min.
  5. Bath in 37℃ for 45 min. For plasmid pKO3 (and other temperature-sensitive strains), bath in 30℃ for 1 hour.
  6. Separate cells on petri-dishes, and cultivate them in 37℃ for 12 hours (for pKO3, 24 hours are necessary).
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